I can confirm 4GB model works with https://github.com/leeboby/armbian-images `ubuntu22.04 server` for the first time when I logged in as root. After I reboot or shutdown it disappears from the `ipscan`. Unfortunately I'd had no hdmi-micro hdmi cable to connect the SBC directly to the monitor couldn't go further debugging. Anyway the non-official Armbian image provided by the official Orangepi team works..weirdly.